/**
Decompresses a Brotli compressed source buffer.
Extracts decompressed data to its original form.
If the compressed source data specified by Source is successfully decompressed
into Destination, then RETURN_SUCCESS is returned. If the compressed source data
specified by Source is not in a valid compressed data format,
then RETURN_INVALID_PARAMETER is returned.
@param Source The source buffer containing the compressed data.
@param SourceSize The size of source buffer.
@param Destination The destination buffer to store the decompressed data
@param Scratch A temporary scratch buffer that is used to perform the decompression.
This is an optional parameter that may be NULL if the
required scratch buffer size is 0.
@retval EFI_SUCCESS Decompression completed successfully, and
the uncompressed buffer is returned in Destination.
@retval EFI_INVALID_PARAMETER
The source buffer specified by Source is corrupted
(not in a valid compressed format).
**/
EFI_STATUS
EFIAPI
BrotliUefiDecompress (
IN CONST VOID * Source,
IN UINTN SourceSize,
IN OUT VOID * Destination,
IN OUT VOID * Scratch
)
{
UINTN DestSize = 0;
EFI_STATUS Status;
BROTLI_BUFF BroBuff;
UINT64 GetSize;
UINT8 MaxOffset;
MaxOffset = BROTLI_SCRATCH_MAX;
GetSize = BrGetDecodedSizeOfBuf((UINT8 *)Source, MaxOffset - BROTLI_INFO_SIZE, MaxOffset);
BroBuff.Buff = Scratch;
BroBuff.BuffSize = (UINTN)GetSize;
Status = BrotliDecompress(
(VOID *)((UINT8 *)Source + BROTLI_SCRATCH_MAX),
SourceSize - BROTLI_SCRATCH_MAX,
Destination,
DestSize,
(VOID *)(&BroBuff)
);
return Status;
}
static SquashStatus
squash_brotli_decompress_stream (SquashStream* stream, SquashOperation operation) {
SquashBrotliStream* s = (SquashBrotliStream*) stream;
if (!BrotliDecompress (s->in, s->out)) {
return SQUASH_FAILED;
}
return SQUASH_OK;
}